Symfony2 Use the third party library upload to create pictures upload examples _php examples

This article analyses the method of Symfony2 using the third party library upload to make picture uploading. Share to everyone for your reference, specific as follows:

We generally have the function of setting avatar in the personal data of the application or the website, this chapter we use a third party in Symfony2 to make the function of uploading the picture with a relatively famous upload library.

First, install the third Party library

1. Add in "require" in the Composer.json file

"Codeguy/upload": "*"

2. Operation instruction Installation

Composer Update

Second, coding

1. Write the Uploadpic method upload picture, and upload the image of the user ID as the filename

<?php/** * @author Sun * by blogs.zmit.cn http://blogs.zmit.cn * Original works, allow reprint, reprint, please be sure to hyperlink form to indicate the original source of the article Http://blogs.zmit. cn/6544.html * Dream Blog, author information and this statement.
 Otherwise, legal liability will be held.
* * Namespace Zm\adminbundle\controller;
Use Symfony\bundle\frameworkbundle\controller\controller;
Use Symfony\component\filesystem\filesystem; Class Defaultcontroller extends Controller {public Function indexaction ($name) {return $this->render (' Zmadminbu
  Ndle:Default:index.html.twig ', Array (' name ' => $name));  /** * Upload Picture * * @param type $user _id user ID, used as filename * @param type $STR the name * @param type of the file type input in the form
    $path Save Path * @return Type */Public function uploadpic ($user _id, $str, $path) {$fs = new filesystem ();
    Check if the path exists if (! $fs->exists ($path)) {//If it does not exist, create a directory $fs->mkdir ($path, 0700);
    ///Use Upload library $storage = new \upload\storage\filesystem ($path);
    $file = new \upload\file ($STR, $storage); If the file name is an empty if ($file->getname ()!= '' {//Set file name as User ID $file->setname ($user _id);  Verify that the file is uploaded $file->addvalidations (Array (//) specifies the file type new \upload\validation\mimetype (' Image/png ',
      ' Image/jpg ', ' image/jpeg ', ' image/gif '),//Specify File Size new \upload\validation\size (' 2M '));
        Upload file try {//Success $file->upload ();
      The filename and extension $file _name = $file->getnamewithextension ();
        catch (\exception $e) {//failed!
      $errors = $file->geterrors ();
  }//returns the filename and extension return $file _name;

 }
}

2. The user uploads the avatar, and the avatar full path is stored in the database table

<?php/** * Contact Controller * @author Sun * by blogs.zmit.cn http://blogs.zmit.cn * Original works, allow reprint, reprint, please be sure to hyperlink form to indicate the original source of the article http://b logs.zmit.cn/6544.html * Dream Blog, author information and this statement.
 Otherwise, legal liability will be held.
* * Namespace Zm\apibundle\controller; Reference to the written upload image method Uploadpic Controller, and named Basecontroller use Zm\adminbundle\controller\defaultcontroller as
Basecontroller;
Use Symfony\component\httpfoundation\request;
Use Symfony\component\httpfoundation\response; Inherit Basecontroller class Contactcontroller extends Basecontroller {/** * user upload avatar * * @return Response/P
    ublic function Uploadheadaction () {$request = Request::createfromglobals ()->request;
    $user _id = $request->get (' user_id '); Determine if there is a file upload if (isset ($_files[' head ')) && $_files[' head ']!= ') {$conn = $this->getdoctrine ()->g
      Etconnection (); $data = $conn-&GT;FETCHASSOC ("Select ID, head from contacts WHERE id =?")
      LIMIT 1 ", Array ($user _id));
Determine if the user exists if (!empty ($data [' ID '])} {//Set Picture save path        $path = ' image/head/';
        Gets the filename and extension $file _name = $this->uploadpic ($user _id, ' head ', $path) after uploading the file Modify the value of the user Contact table Head avatar field $conn->executeupdate ("UPDATE contact SET heads =?").
        WHERE id =? ", Array ($path. $file _name, $user _id));
        $result [' flag '] = 1; $result [' content '] = ' upload avatar success!
      ';
        else {$result [' flag '] = 3; $result [' content '] = ' user does not exist!
      ';
      }}else{$result [' flag '] = 2; $result [' content '] = ' upload failed, no pictures selected!
    ';
  Return to New Response (Json_encode ($result), ' m ', Array (' Content-type ' => ' Application/json '));

 }
}

The image is uploaded successfully, the user ID as the file name, and the table field value is the full path of the picture

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I hope this article will help you with the PHP program design based on Symfony framework.